What does rainproof mean?
Rainproof is an adjective describing something that can withstand rain without becoming wet or allowing water through. It is especially common for jackets, coats, footwear, bags, tents, and other outdoor equipment, but it can also describe materials and protective treatments. The word is practical and straightforward: a rainproof garment is one intended to keep rain out or prevent damage from wet weather. In informal and commercial contexts, it may overlap with waterproof, although waterproof can suggest a stronger or more general ability to resist water, while rainproof specifically highlights protection from falling rain. The compound formation combines rain with proof, a word meaning protection or resistance. Rainproof is useful when choosing clothing or equipment for travel, commuting, and outdoor activities, where being exposed to rain is likely.
adjectiveDesigned or treated to resist the effects of rain; waterproof or able to keep out rain.
- Resistant to rain or water; suitable for use in wet weather.
"She wore a rainproof jacket while walking through the storm."
"The hikers packed lightweight rainproof clothing for the unexpected downpour."
"The tent was made from rainproof fabric and remained dry throughout the night."
Rainproof is built for the day when the forecast is right and the weather refuses to cooperate.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does rainproof come from?
Rainproof is a modern English compound formed from rain and proof. Rain comes from Old English regn and has cognates in several Germanic languages, while proof entered Middle English through Old French from Latin probare, “to test.” The second element therefore originally conveyed the idea of being tested or protected against something, yielding the modern sense of a material or object designed to withstand rain.
How rainproof is actually used
Common chiefly in clothing, footwear, equipment, and other products. It emphasizes protection from rain, though it is often used interchangeably with waterproof in everyday speech.